Valve



May 29, 1928. 1,671,609

H. T. ROBERTS VALVE Filed Feb. 19, 1925 Patented May 29, 1928.

. UNITED STATES PATENT OFFICE.

ING COMPANY, OF CHICAGO,

BASSICK MANUFACTUR- ILLINOIS, A CORPORATION OF DELAWARE.

VALVE.

Application filed February 19, 1923. Serial No. 620,108.

My invention relates to :walves and to nozzle structures which I havecombined with the valves of my invention but to which combination ofparts the invention is not to be limited.

The valve and nozzle structure of my invention are of particular servicewhen employed in connection with lubricant ejecting devices used forsupplying lubricant to hearings or other parts, though the invention isnot to be thus restricted.

'My improved nozzle structure enables the use of a lubricant applyingimplement upon bearings that are diflicult of access. In carrying outthis feature of my invention a nozzle tube is provided with a ca thathas a T-shaped bore. The head portion of this bore extends but andreceives one end of the tube, the imperforate ortion of the cap atone-end of the head 01 the bore serving to close the forward end of thetube. The tube is formed with a lateral opening that is aligned with thestem portion of the cap bore whereby there is formed a lateral outletfor the lubricant or other fluid. The portion of the cap through whichthe stem of the bore is forme projects laterally of the tube so that thedischarge end of the device may readily be applied to parts that wouldbe inaccessible or diflicult of access. 7

The valve portion of the structure includes two hollow cases coupled endto end, the adjacent ends of these cases being open to permit passage offluid from one case into the other, a packing ring clamped between .theadjacent ends of said cases and having its 0 enin aligned with theopenings in the a djacefit ends of the cases, and a valve for closingthe opening in said ring and having the ring for its seat. The valve ispreferably in the form the ring opening, this ball bein the portion ofthe ring surroun ing the opening. The ring thus performs a doublefunction. It serves as a packing to render fluid tight the joint betweenthe two coupled hollow cases and it also serves as a seat for the valve.

The valve of my invention also desirably includes a seat for a valveclosing coiled spring, this seat having a central opening and at lastone radiating opening communicating with the central opening. The

seated upon partially through the cap of a ball which enters.

between the adjacent ends of coiled spring within the valve case islaterally spaced apart from this case so that lubricant or other fluidmay flow around the outside of the spring as well as through its bore.The radiating opening or openin extend to the space upon the exterior of.the spring so that the fluid may flow through the spring seat from thespace surrounding thespring as well as through the bore of the spring.

I will explain my invention more fully by reference to the accompanyingdrawing in which Fig. 1 is a view in elevation of a lubricant applyingdevice constructed in accordance with the preferred embodiment of theinvention; Fig. 2 is a longitudinal sectional view of .the front endportion of the structure shown in Fig. 1, taken on a larger scale; Fig.3 is a view showing some of the parts that are illustrated in Fig. 2 inseparated relation; and Fig. 4 is a sectional view on line 4-4 of Fig.2.

Like parts are indicated by similar characters of-reference throughoutthe difi'erent figures.

The invention is shown in the drawing as being applied to a device forefi'ectin t forcible discharge of lubricant upon ar- -ings or otherplaces where lubricant is to be employed. The device illustratedincludes a lubricant holding barrel 1 which encloses a piston 2 having astem 3 projecting throu h a removable cap 4 at the rear end of t ebarrel. This stem terminates in a head 5 by which the piston may beforced to move in the barrel elther upon a straight longitudinalmovement of the piston and its stem or upon a combined longitudinal andscrewing movement of the piston and its stem, all as *is well understoodby those familiar with the art. 7

A pipe section or hollow case 6 is suitably assembled with the barrel 1at the forward or outlet end of the barrel. The forward end of the case6 is threaded u on its exterior and is screwed into another ollow case 7to couple these two cases end to end to constitute the case 7 acontinuation of the case 6, the adjacent ends of these cases being opento ermit of passage of lubricant or other fluid mm the case 6 into thecase 7.

A packing ring 8,-forn1ed of rubber, fiber or any other suitablematerial, is clamped the casesaand the union between the hollow cases 6an aligned with the o enings A valve ball 9 is ispose within the case 7,this ball entering the opening in the ring 8 to close the valve which,in its closed position, is seated upon the portion of the ringsurrounding the ring opening. The ring thus serves the double purpose ofa packing to renderfiuid tigh; and also as a seat for the valve. Closingaction is exerted upon the valve by means of a spring which ispreferably a coiled spring 10 disposed within the interior of the hollowcase 7, the forward end of this spring being seated against the forwardend of the case 7 and the rear end of the spring pressing upon the ballto exert valve closing action thereupon. The spring is placed undercompression of the ring 8 which occurs in screwing the two casestogether. The surfaces of the cases between which the ring is clampedare conicall tapered, these surfaces being substantially parallel andforwardly directed whereby the central portion of the ring is dishedforwardly to place the spring under further compression. The forward endof the hollow case 7 is formed with a dished seat for the spring 10,this dished seat having a central opening 11 in direct communicationwith the bore of the spring. One or more radiating openings 12 extendfrom the central openin 11 to the space that intervenes between the sideof the spring and the lateral wall of the case whereby fluid may notonly pass through the bore of the spring through the spring seat, butalso may pass from the space surrounding the spring through the springseat.

The nozzle portion of the structure includes a nozzle tube 13 and a cap14. upon the discharge end of the tube. This cap has a blind bore endingat the wall portion 15. The cap also has a through axial bore opening atone end at 17. The tube 13 enters the blind bore and is securelyfastened therein. The tube 13 is formed with a lateral opening 16 whichis aligned with the portion 17 of the through here, whereby thedischarge end of the passage of the implement is angular to the longtube 13. By this construction the discharge end of the implement may beinserted inplaces that would otherwise be difficult of access. Theportion of the cap surrounding the stem porhas its opening in theseends.

tion 17 of the through bore may be suitably d the inf by the forwardmovement connecting shaped to conform to the purpose for which lement isintended.

Whi e I have herein shown and particularly described the preferredembodiment of my invention I do not wish to be limited to the precisedetails of construction shown as changes ma readily be made withoutdeparting from t e spirit of my invention, but having thus described myinvention I claim as new and desire to secure by Letters Patent thefollowings- 1. Apparatusof t c class described comprising a firstconduit, a second conduit, a valve chamber connecting said conduits, a.valve seat, a valve, a coil spring having a forward end entirely closedby said valve and a rear end surrounding the end'of said second conduit,and laterally extending passageways said second conduit with a part ofsaid valve chamber exterior of said coil sprin 2. ipparatus of the classdescribed comprising a first conduit, a second conduit, a valve chamberconnectingsaid conduits, a valve seat, an imperforate valve therefor, acoil sprin of smaller diameter than said chamber am having a forward endclosed by said valve and a rearward end surrounding the end of saidsecond conduit, said spring being designed to permit lubricant to passfrom a part of said chamber exterior of said spring through the coils ofsaid sprin and into said second conduit, and specia means beyond said sring for connecting said second conduit wit a part of said chamberexterior thereof to provide for unusual conditions of operation of saiddevice.

3. Conduit means for lubricating apparatus comprising, in combination, avalve chamber, a valve seat at the inlet end thereof, valve meansadapted to cooperate with said valve seat, a coil spring for urging saidvalve means against said valve seat, an abutment at the outlet end ofsaid valve cham- 100 ber, an outlet-of smaller diameter than said valvechamber, said spring confined between said valve means and said abutmentand surrounding said outlet, and a passage extending transversely ofsaid spring and one end thereof to permit passage of lubricant throughsaid valve chamber without passing between the coils of said spring.

In witness whereof, I hereunto subscribe my name this 13th day ofFebruary,

HENRY T. ROBERTS.

A. D., no

